Didn't find class "kotlinx.serialization.json.Json" on path: DexPathList

[ravadisagarrao]

Able to compile code and generate .apk file and Below is the error we are getting during runtime.

07-02 13:57:49.245 19976 20076 E AndroidRuntime: FATAL EXCEPTION: pool-2-thread-5
07-02 13:57:49.245 19976 20076 E AndroidRuntime: Process: com.xyz.xyz.qa, PID: 19976
07-02 13:57:49.245 19976 20076 E AndroidRuntime: java.lang.NoClassDefFoundError: Failed resolution of: Lkotlinx/serialization/json/Json;
07-02 13:57:49.245 19976 20076 E AndroidRuntime: at .......
.....
07-02 13:57:49.245 19976 20076 E AndroidRuntime: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
07-02 13:57:49.245 19976 20076 E AndroidRuntime: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
07-02 13:57:49.245 19976 20076 E AndroidRuntime: at java.lang.Thread.run(Thread.java:1012)
07-02 13:57:49.245 19976 20076 E AndroidRuntime: Caused by: java.lang.ClassNotFoundException: Didn't find class "kotlinx.serialization.json.Json" on path: DexPathList[[zip file "/data/app/~~N6alC4MfPGo0PSOzCyFhTQ==/com.xyz.xyz.qa-kpgx5B81J2Pl9J1wikvpjg==/base.apk"],nativeLibraryDirectories=[/data/app/~~N6alC4MfPGo0PSOzCyFhTQ==/com.xyz.xyz.qa-kpgx5B81J2Pl9J1wikvpjg==/lib/arm64, /data/app/~~N6alC4MfPGo0PSOzCyFhTQ==/com.xyz.xyz.qa-kpgx5B81J2Pl9J1wikvpjg==/base.apk!/lib/arm64-v8a, /system/lib64, /system_ext/lib64]]
07-02 13:57:49.245 19976 20076 E AndroidRuntime: at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:259)
07-02 13:57:49.245 19976 20076 E AndroidRuntime: at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
07-02 13:57:49.245 19976 20076 E AndroidRuntime: at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
07-02 13:57:49.245 19976 20076 E AndroidRuntime: ... 11 more

1. Tried adding below entries in build.gradle.

**plugins {
id 'org.jetbrains.kotlin.jvm' version '2.0.0'
id 'org.jetbrains.kotlin.plugin.serialization' version '2.0.0'
}
repositories {
mavenCentral()
}

implementation "org.jetbrains.kotlinx:kotlinx-serialization-json:1.7.1"**

2. And one more thing what i observed is kotlinx-serialization-json is not getting downloaded to local .gradle folder.

3. Also, in the generated .apk file I see kotlinx-serialization-json reference but still not able to find during runtime. FYI, please find screen attached.
   

Environment

• Kotlin version: [2.0.0]
• Cordova 6.5.0
• Gradle version: [6.8.3]
• CompileSdkVersion=33
• TargetSdkVersion= 33

Any inputs appreciated.

[sandwwraith]

I'm not familiar with Cordova, so maybe it requires some additional setup. I can recommend you check if the issue is the same across different variants (debug and release). Maybe your minifying rules are too strict? Also, check in tests: if regular (non-device) tests do not have this problem, this also indicates problem with application packaging.